Starting valve and mounting therefor

Abstract

A starting valve is disclosed having a starter choke valve and a poppet valve which is kept closed by the starter choke valve when the choke valve is in an open position. For mounting the starter choke valve there is provided a choke shaft and a bushing set screw which interact with a plurality of tapered bushes. The arrangement provides for an axial and a radial compression of the bushes to prevent foreign matter from fouling the movement of the choke. Also a compensation for the varying tolerances between the component parts is accomplished by providing a plurality of rubber-elastic components.

What is claimed is: 
     
       1. A mounting for a valve comprising: a valve pivotable within a housing about an axis from a closed position to an open position;   first and second enlarged sections on the valve at first and second ends of the axis respectively;   the first enlarged section containing first resilient bearing means for allowing the valve to pivot and means for adjustably securing the first resilient bearing means; and   the second enlarged section containing means for non-rotatably mounting a valve shaft.   
     
     
       2. The mounting of claim 1 wherein the valve shaft is provided with conical surface means for engaging second resilient bearing means for permitting the valve to pivot. 
     
     
       3. The mounting of claim 2 wherein each of the first and the second resilient bearing means comprises two tapered bushes and one tapered rubber bushing. 
     
     
       4. The mounting of claim 3 wherein each of the individual bushes is comprised of a Teflon-coated multisubstance material. 
     
     
       5. The mounting of claim 1 or 3 wherein the means for adjustably securing the first resilient bearing means comprises a set screw having a conical end which engages the first resilient bearing means. 
     
     
       6. The mounting of claim 5 wherein the first resilient bearing means is arranged in a slot provided in the set screw. 
     
     
       7. The mounting of claim 1 or 2 wherein the means for non-rotatably mounting the valve shaft comprises a hexagonal portion on the valve shaft which is inserted in a hexagonal bore in the second enlarged section. 
     
     
       8. The mounting of claim 7 wherein the hexagonal portion on the valve shaft has an internal bore which internal bore receives a hexagonal bolt. 
     
     
       9. The mounting of claim 8 wherein the internal bore has an inside taper at an end, which taper receives expanding cone means for tightening and holding the hexagonal portion on the valve shaft within the hexagonal bore when the hexagonal bolt is tightened. 
     
     
       10. The mounting of claim 9 wherein a rubber disk is arranged between the expanding cone means and an end of the hexagonal bore. 
     
     
       11. A starting valve comprising: a starter choke valve pivotable within an inlet duct in a housing about an axis from a closed position to an open position;   first and second enlarged sections on the choke valve at first and second ends of the axis respectively;   the first enlarged section containing first resilient bearing means for allowing the choke valve to pivot and means for adjustably securing the first resilient bearing means; and   the second enlarged section containing means for non-rotatably mounting a choke valve shaft.   
     
     
       12. The starting valve of claim 11 wherein the choke valve shaft is provided with conical surface means for engaging second resilient bearing means for permitting the valve to pivot. 
     
     
       13. The starting valve of claim 11 or 12 wherein the means for adjustably securing the first resilient bearing means comprises a set screw having a conical end which engages the first resilient bearing means. 
     
     
       14. The starting valve of claim 11 or 12 wherein the means for non-rotatably mounting the choke valve shaft comprises a hexagonal portion on the choke valve shaft which is inserted in a hexagonal bore in the second enlarged section. 
     
     
       15. The starting valve of claim 14 wherein the hexagonal portion on the valve shaft has an internal bore which internal bore receives a hexagonal bolt. 
     
     
       16. The starting valve of claim 15 wherein the internal bore has an inside taper at an end, which taper receives expanding cone means for tightening and holding the hexagonal portion on the choke valve shaft within the first hexagonal bore by tightening the hexagonal bolt. 
     
     
       17. The starting valve of claim 16 wherein a rubber disk is arranged between the expanding cone means and an end of the hexagonal bore. 
     
     
       18. The starting valve of claim 12 wherein one end of a restoring spring is attached to the choke valve shaft and the other end is fixed to a bearing cap, which bearing cap is attached to the housing. 
     
     
       19. The starting valve of claim 18 wherein the resilient bearing means is arranged in a slot provided in the bearing cup. 
     
     
       20. The starting valve of claim 11 wherein the housing contains poppet valve means for bypassing air around the choke valve when the choke valve is closed. 
     
     
       21. The starting valve of claim 20 wherein the choke valve is provided with stop means for closing the poppet valve means when the choke valve is in the open position. 
     
     
       22. The starting valve of claim 20 or 21 wherein the poppet valve means includes: a valve head;   a valve seat;   spring means for biasing the valve head towards a closed position pressed against the valve seat; and   a spring basket arranged concentrically within the spring means, the spring basket being tapered inwardly towards the valve head.